Does Stock Market Momentum Really Matter? History Says So

On Nov. 20, the S&P 500 Index (SPX) was down 4.4% for the month, and it looked as though its six-month winning streak was about to end. Instead, it rallied over the final 10 days of November to eke out a win and extend the streak to seven months heading into December. With the index up over 20% during the streak, should we worry that the market is overextended? This week, I’m digging into the historical data to find out.  Looking Closely at 7-Month Win StreaksSince 1950, there have been 15 previous seven-mo ...